'81 damper tube Works Performance mod

[GT350]

I spotted this mod in '81 Dirt Bike. Has anyone tried this? Results?

I have an extra damper tubes here so I'm thinking about trying it out....

[LWC82PE]

Thanks for sharing that.

[Oldfart]

how many extra holes ??

[80-85 husky]

I rode a 350 moto villa which had the stock damper holes brazed and new ones drilled. excellent performance from aset of corte cossa's

[Nebo]

   This a old mod . If you have the Factory Maico Information Bulletins you will find this Mod.


   Try 10 wt oil.  Use Ariete Fork SEALS. Must Have a good Pressure Gauge. NOT a Tyre Gauge.

[mxmaniac]

Nebo, with standard 81 490gs forks, what oil and pressure is a good base setting?

[Nebo]

   Start at 1/2 Bar or 7 psi . Do not exceed 14 psi or 1 Bar . Standard Oil amount and Level

   Is per Manual.

 
   
    Fork springs may have sagged. Make some 20 mm spacers from Alloy or High Impact Plastic .

    Or Chippys Maico has new Ones.   I think .47kg are standard. Heavy are .49kg. Will check.

      Skill level and rider Weight is a big consideration.


   

   

[mxmaniac]

Thanks mate, its always good to hear other peoples valuable information. We have been riding dads maniocs for years and love them. Cant wait to experiment myself now with the 81 490

[GT350]

What is the spacing position on the .125" hole to be drilled on the top chart?